ELABORATION AND MECHANICAL-PROPERTIES OF SI3N4 SICXNY COMPOSITES/

Authors
MAYNE M BAHLOULHOURLIER D GOURSAT P BESSON JL
Citation
M. Mayne et al., ELABORATION AND MECHANICAL-PROPERTIES OF SI3N4 SICXNY COMPOSITES/, Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie, 320(9), 1995, pp. 433-439
Citations number
12
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie → ACNP
ISSN journal
12518069
Volume
320
Issue
9
Year of publication
1995
Part
1
Pages
433 - 439
Database
ISI
SICI code
1251-8069(1995)320:9<433:EAMOSS>2.0.ZU;2-A
Abstract
The incorporation of nanometric powder SiCxNy as a second phase within silicon nitride matrix influences the microstructure of composite mat erials obtained by hot pressing. The presence of a Carbon-rich second phase permits to enhance the alpha to beta Si3N4 transformation rate b ut inhibits the acicular growth of the beta Si3N4 grains. Si3N4/SiCN c omposites having a fine microstructure exhibit a fairly good plastic d eformation at high temperature.